The problem is that the satellites were in parallel.
They have to be series connected to count as a cross-satellite contact.
n3tl at bellsouth.net wrote:
> WB9L is intentionally working AO-51, which is thousands of km away from
> and pretty much opposite AO-16, which N3TL is intentionally working.
> Indeed, both satellites have the same FM/VHF uplink. WB9L copies N3TL on
> AO-51 at 435.300 +/-, in FM. N3TL copies WB9L on AO-16 at 437.026 +/-,
> in SSB. It seemed clear to me that a complete contact between these two
> stations occurred across both satellites.